CN101583097B - Soft switch service communication method, device and system - Google Patents
Soft switch service communication method, device and system Download PDFInfo
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- CN101583097B CN101583097B CN2009101423981A CN200910142398A CN101583097B CN 101583097 B CN101583097 B CN 101583097B CN 2009101423981 A CN2009101423981 A CN 2009101423981A CN 200910142398 A CN200910142398 A CN 200910142398A CN 101583097 B CN101583097 B CN 101583097B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/10—Architectures or entities
- H04L65/1046—Call controllers; Call servers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/04—Large scale networks; Deep hierarchical networks
- H04W84/042—Public Land Mobile systems, e.g. cellular systems
- H04W84/045—Public Land Mobile systems, e.g. cellular systems using private Base Stations, e.g. femto Base Stations, home Node B
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Abstract
The invention belongs to the technical field of communication, and relates to a soft switch service communication method, a device and a system, wherein the soft switch service communication method comprises the following steps: a first indoor base station sends a request message for starting soft switch service to a second indoor base station to establish a transmission channel for soft switch service; and soft switch service communication is conducted between the first indoor base station and the second indoor base station in the transmission channel for soft switch service so as to realize the soft switch service communication covered by the indoor base stations and expand the application of the indoor base stations.
Description
Technical field
The present invention relates to communication technical field, relate in particular to a kind of means of communication, device and system of soft switch service.
Background technology
Along with the development of internet service, and the extensive use of broadband access network and wireless network, the user needs at a high speed, convenient and use wireless device cheaply, to enjoy wireless data service.Resource for the better utilization existing network; and the cost of protecting network equipment operator, in Radio Access Network, introduced FEMTO-CELL (femtocell formula base station), the FEMTO-CELL corresponding equipment is called AP (Access Point; or be called indoor base station access point).
In the prior art, AP can be applicable to UMTS (Universal Mobile TelecommunicationsSystem, universal mobile telecommunications system).AP is connected to AG (Access Gate, IAD) by IP (Internet Protocol, Internet Protocol) network, and AG is connected to existing UMTS system, forms UMTS AP family covering system.Compare with the traditional base station, UMTS AP has reduced the impact of high-speed data service to the mobile network, makes prior wireless network can insert more wireless high-speed data user.
But the application based on AP in the prior art lacks very much.
What deserves to be explained is, AP can also be applied in other communication systems, such as GSM (GlobalSystem for Mobile communications, global system for mobile communications), CDMA2000 (CodeDivision MultipleAccess, code division multiple access inserts 2000) system, and LTE/SAE systems such as (Long TermEvolution, 3GPP Long Term Evolution plans/System Architecture Evolution System Architecture Evolution).In these systems, similar problem exists equally.
Summary of the invention
The embodiment of the invention is to provide a kind of means of communication, device and system of soft switch service, can realize that indoor base station covers the communication of soft switch service down.
The embodiment of the invention is achieved through the following technical solutions:
One embodiment of the invention provides a kind of means of communication of soft switch service, and this method comprises:
First indoor base station sends the request message that starts soft switch service to second indoor base station, sets up the transmission channel of described soft switch service;
Described first indoor base station and second indoor base station carry out the communication of described soft switch service on the transmission channel of described soft switch service.
Another embodiment of the present invention also provides a kind of communication device of soft switch service, and this device comprises:
First module is used for sending the request message that starts soft switch service to indoor base station, sets up the transmission channel of described soft switch service;
Second module is used for carrying out the communication of described soft switch service on the transmission channel of the soft switch of described foundation.
Another embodiment of the present invention is a kind of communication system of soft switch service also, comprises a kind of soft switch service communication device that the foregoing description provides.
Above technical scheme as can be seen, first indoor base station sends the request message that starts soft switch service to second indoor base station, set up the transmission channel of soft switch service, first indoor base station and second indoor base station carry out the communication of soft switch service on this transmission channel afterwards.By the technical scheme that the embodiment of the invention provides, realize that indoor base station covers the communication of soft switch service down, has expanded the application of Home eNodeB AP.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the means of communication flow chart of the soft switch service that provides of the embodiment of the invention one;
Fig. 2 is the means of communication flow chart of the soft switch service that provides of the embodiment of the invention two;
Fig. 3 is the means of communication flow chart of the soft switch service that provides of the embodiment of the invention three;
Fig. 4 is the communication device schematic diagram of the soft switch service that provides of the embodiment of the invention four;
Fig. 5 is the communication device schematic diagram of the soft switch service that provides of the embodiment of the invention five;
Fig. 6 is the communication device schematic diagram of the soft switch service that provides of the embodiment of the invention six.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described.Obviously, described embodiment is a part of embodiment of the present invention, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, the scope that all belongs to the present invention and protected.In order to make those skilled in the art be more readily understood technical scheme of the present invention, at first technical solution of the present invention is briefly described.
What deserves to be explained is, the technical scheme that the embodiment of the invention provides is applicable to all wireless access systems, the scope of application includes but not limited to UMTS, CDMA, GSM, TD-SCDMA (TimeDivision-Synchronization Code Division Multiple Access, TD SDMA inserts), WiMAX (Worldwide interoperability for Microwave Access, global intercommunication microwave inserts) etc. wireless network, be equally applicable to the various wireless access systems after the evolution, as HSPA (HighSpeed Packet Access, the high-speed packet access) downward evolution version HSPA+ and LTE (Long TermEvolution, Long Term Evolution) network etc.
Wherein, the concept explanation that relates to is as follows:
Soft switch: its basic meaning is separated CCF exactly from media gateway (transport layer), realize the basic call controlled function by software, comprise call routing, management control, connect control (foundation/dismounting session) and signalling interworking, thereby realize call transfer and call out separating of control, set up the plane of separating for control, exchange and software programmable function.Soft switch mainly provides and connects control, translation and functions such as routing, gateway management, calling control, Bandwidth Management, signaling, fail safe and call detail record.Meanwhile, soft switch also encapsulates Internet resources, network capabilities, business interface by standard open links to each other with service application layer, thereby can on network, provide new business easily fast, in order to realize multimedia service, it is the multimedia service solution on basis that Softswitch technology has been introduced with IMS (IP multimedia subsystem, IP Multimedia System).
IMS: be a kind of standardized next generation network framework, IMS uses based on 3GPP standardization SIP (Session Initiation Protocol, Session initiation Protocol) VoIP of Ying Yonging (Voice over InternetProtocol, the Internet phone) uses, be carried on the standard I P agreement, by the various application of mutual realization based on the ISC of SIP (Internal Service Control, internal services control) interface and various application servers.Because IMS merged the voice-and-data business, combine the flexibility of IP network and the extensibility of SIP again, telecom operators are provided move and fixedly multimedia service become possibility.
SIP: be application layer control protocol, can set up, revise and stop Multimedia session (meeting), as internet telephone cell.
AP Service Gateway (ASG) server: preserve the SIP register name of each AP, and each AP allows MSISDN, IMSI and the portable terminal of resident portable terminal whether to reside in mark on the AP or the like in the Close mode of operation; The ASG server is also preserved call record, and the content of record comprises whether calling number, called number and caller allow video communication and called video communication or the like information that whether allows.
In addition, the technical scheme that the embodiment of the invention provides be to realize soft switch service, and AP is as SIP UA (UserAgent, user agent), the integrated function of SIP client.Such as, after each AP electrifying startup, after obtaining the IP address, initiate the SIP registration immediately, and login name is saved on the ASG server by the TCP/IP communication.
Below the embodiment of the invention is described in detail.
Referring to Fig. 1, the means of communication flow chart of the soft switch service that provides for the embodiment of the invention one, described method comprises:
S100: first indoor base station sends the request message that starts soft switch service to second indoor base station.
Wherein, can be connected by the IMS core net between first indoor base station and second indoor base station.
S101: the transmission channel of setting up soft switch service between first indoor base station and second indoor base station.
For example, the transmission channel of soft switch service is UDP (User Datagram Protocol, a User Datagram Protoco (UDP)) passage, and the UDP passage is before the transmission data, do not connect between the first indoor base station end and second indoor base station, therefore do not need to safeguard connection status.
Wherein, soft switch service is the SIP speech communication, perhaps the SIP video communication.
If soft switch service is an initial session protocol SIP video communication, then after the message of the startup SIP video communication of first indoor base station reception ASG server transmission, send SIP video communication request message to second indoor base station, after a SIP response message that receives the transmission of second indoor base station, the transmission channel of the SIP video communication between the foundation and second indoor base station;
If soft switch service is initial session protocol SIP speech communication, then first indoor base station receives the setup requests that second terminal of first terminal under second indoor base station covers under its covering sends, and obtains first termination number and second termination number from setup requests; If first indoor base station is judged when second termination number is the SIP herd number of second indoor base station, the setup requests that receives is converted to SIP speech communication request, send to second indoor base station; After receiving the 2nd SIP response message of second indoor base station transmission, the transmission channel of the SIP voice communication between the foundation and second indoor base station.
S102: first indoor base station and second indoor base station carry out the communication of soft switch service on the transmission channel of soft switch service.
In the present embodiment, first indoor base station by and second indoor base station between set up the soft switch service transmission channel, when carrying out the communication of the software reciprocal exchange of business between this soft switch service transmission channel and second indoor base station, thereby realized carrying out the soft switch service communication, expanded the application of Home eNodeB two indoor base station times.
Referring to Fig. 2, the means of communication flow chart of the soft switch service that provides for the embodiment of the invention two, described method comprises:
S200: first terminal and second terminal are set up voice call.
For example, first terminal makes a phone call for second terminal by AP under it, AP listens to the call setup message of call control message under first terminal in up direct-sending message, the call setup message that listens to is passed through core net, after the call setup success, the corresponding call record of AP notice ASG server foundation under the AP or second terminal under first terminal, this call record content can be preserved first termination number and second termination number.
S201: the AP of first terminal under it sends the triggering message of request SIP video communication;
In this step, this triggering message can be START DTMF (Dual-Tone Multi frequency, dual-tone multifrequency) message.Concrete, after audio call between first terminal and second terminal is set up successfully, first terminal and second terminal can consult to implement visual telephone by AP in the process of speech communication, such as, first terminal can be asked video communication to an AP by triggering certain button that sets in advance on the keyboard.
S202: when an AP received the triggering message of the request SIP video communication that first terminal sends, notice ASG server write down this first terminal permission video communication in call record;
Concrete, the triggering message of the startup SIP video communication that first terminal sends can comprise the information of the permission video communication that sets in advance, after the one AP receives and triggers message, send the message that record first terminal allows video communication to the ASG server, accordingly, ASG server record first terminal allows video communication.
During specific implementation, trigger allowing the information of video communication to set in advance in the message, such as the IA5 character code that is certain key.
The S203:ASG server sends the message that starts the SIP video communication to an AP.
For example, when record queries second terminal that the ASG server is preserved according to this locality allows video communication, according to first termination number of preserving, notify an AP to start the SIP video communication, the content of message comprises: the SIP herd number of an AP and the information such as SIP herd number of the 2nd AP.
S204: after the message of the startup SIP video communication that AP reception ASG server sends, send SIP video communication request message to the 2nd AP.
For example, an AP is after the message of receiving the startup SIP video communication that the ASG server sends, and AP structure is asked the message of SIP video call (SIP INVITE), and the message of the request video call that will construct sends to the 2nd AP; The message acceptance side of this request video call (TO territory) comprises the SIP herd number of opposite end AP (the 2nd AP), startup side (FROM territory) comprises self SIP herd number of (AP), this SIP INVITE can also further carry Session Description Protocol (SDP) information simultaneously, and this SDP information can comprise public network IP address of the media formats that carries out video communication, type of coding, Media Stream port, AP or the like.
S205: the 2nd AP sends a SIP response message to an AP.
For example, the 2nd AP receives after the SIP INVITE, constructs an AIP response message, for example SIP 200OK.In SIP 200OK message, the FROM territory comprises self SIP herd number of (the 2nd AP), the TO territory comprises the SIP herd number of opposite end (AP), simultaneously can also further carry Session Description Protocol (SDP) information, this SDP information can also comprise public network IP address of the media formats that carries out video communication, type of coding, Media Stream port, AP or the like.
S206: an AP sends to the 2nd AP and replys acknowledge message.
For example, after an AP receives that the SIP 200OK of the 2nd AP replys, reply acknowledge message (SIP ACK) to AP transmission.
S207: set up the UDP passage between an AP and the 2nd AP.
Concrete, an AP and the 2nd AP are known the IP address and the Media Stream port of opposite end according to Session Description Protocol (SDP) information, set up the UDP passage that is used for the SIP video communication.
S208: an AP and the 2nd AP carry out the transmission of SIP video media stream on the UDP passage;
Concrete, an AP can send to the SIP video media stream that receives the display device under the one AP covering, and the 2nd AP can send to the SIP video media stream that receives the display device under the one AP covering.
In the technical scheme of present embodiment, networking model based on femtocell formula base station, can be connected into AP to electric consumers such as the television set of one family, desktop computer, notebook computer, landline telephone and portable terminals by ADSL modem, this AP has the radio reception device of home gateway and MSC function, thereby forms the inner private network of one family.After an AP and the 2nd AP video communication are set up successfully, the vision signal of opposite end can be shown on portable terminal, television set or computer in real time.
Concrete, the captured image of the camera at communication two ends (such as the camera on first terminal and second terminal) adopts the mode of rtp streaming to send to the opposite end after video coding; And opposite end AP is after monitoring video media stream, to its display devices such as issuing video telephone, the mechanical, electrical brain of indoor tv of decoding.
More than initiatively initiate the SIP video communication from first terminal angle be described, if initiatively initiate the angle of SIP video communication from second terminal, corresponding step is:
Two AP of second terminal under it sends the triggering message of request SIP video communication; When the 2nd AP received the triggering message of request SIP video communication, notice ASG server write down this second terminal and allows video communication in call record; When record queries first terminal that the ASG server is preserved according to this locality allows video communication, send the message that starts the SIP video communication to the 2nd AP; After the message of the startup SIP video communication that the 2nd AP reception ASG server sends, send SIP video communication request message to an AP; The one AP sends the SIP response message to the 2nd AP; The 2nd AP sends to an AP and replys acknowledge message; Set up the UDP passage between the one AP and the 2nd AP; The one AP and the 2nd AP carry out the transmission of SIP video media stream on the UDP passage.
Because and abovementioned steps is similar, detailed step no longer specifically describes.
Be understandable that in the process of carrying out the SIP video communication, the either party of communication can be interrupted ongoing SIP video communication by triggering certain default button at any time between first terminal and second terminal.AP is when listening to START DTMF message under triggering the terminal of interrupting the SIP video communication, if comprise the IA5 character code of certain key that stops the SIP video communication that sets in advance in the message, then notify ASG server this user of record in the respective call record not allow video communication, and the affiliated AP of the terminal that triggers the break of video communication sends the message that stops SIP video communication (SIP BYE) and gives the other side, thereby reaches the purpose that stops the SIP video communication.In addition, communication finishes between first terminal and second terminal, and an AP or the 2nd AP send the message of deletion message registration to the ASG server.
In the technical scheme that present embodiment provides, the function of SIP client that AP is integrated, the realization of SIP video communication flow process and the ASG server can be cooperated.When needing to carry out the SIP video communication between first terminal and second terminal, send the request message that starts soft switch service to opposite end AP by local terminal AP, Signalling exchange by terminal, AP, ASG server, finishing the SIP video communication consults, set up the transmission channel of video communication, and on transmission channel, carry out the SIP video communication.Realize the SIP video communication of AP under covering with this, expanded the applied business of AP.
And the embodiment of the invention can adopt video accompaniment to set up technology, carries out the SIP video communication when being implemented in the normal speech service, promptly dials common voice call by Femto Cell, can follow and set up video call.
In addition, if this AP has home gateway functionalities, by ADSL modem electric consumers such as the television set of one family, desktop computer, notebook computer, landline telephone and portable terminal are connected into AP, thereby form the inner private network of one family, then portable terminal has become the cordless telephone handle in the video telephone, in the video communication process by being connected computer or the TV display image on the AP, thereby improved user experience.
In addition, the technical scheme that the embodiment of the invention provides can also realize that AP covers SIP speech communication down.
Scheme comprises: first indoor base station receives the setup requests that second terminal of first terminal under second indoor base station covers under its covering sends, from setup requests, obtain first termination number and second termination number, if first indoor base station is judged when second termination number is the SIP herd number of second indoor base station, the setup requests that receives is converted to SIP speech communication request, sends to second indoor base station; Second indoor base station is replied SIP speech communication request, such as sending the 2nd SIP response message, after first indoor base station receives the 2nd SIP response message, the transmission channel of the SIP voice communication between the foundation and second indoor base station, by the transmission channel of this SIP voice communication, and carry out the SIP speech communication between second indoor base station.
Concrete, second indoor base station is after receiving SIP speech communication request, the terminal of second indoor base station under it covers initiated paging, certain terminal response under if second indoor base station covers when the paging of second indoor base station and off-hook, second indoor base station sends the 2nd SIP response message to first indoor base station; After first base station receives the 2nd SIP response message of second indoor base station transmission, send offhook message to first terminal, this offhook message of first terminal response, first base station is behind the off-hook response message that receives the transmission of first terminal, send sip response message to second indoor base station, set up the UDP passage between the one AP and the 2nd AP, carry out the SIP speech communication by this UDP passage.
Below be described with the realization of the mode of specific embodiment the SIP speech communication:
Referring to Fig. 3, the means of communication flow chart of the soft switch service that provides for the embodiment of the invention three, described method comprises:
S300: set up between first terminal and the AP that radio bearer is connected or Data-carrying connects.
S301: an AP receives call setup (call setup) request that first terminal sends, if second termination number is the SIP herd number of the 2nd AP, then the setup requests that receives is converted to initial session protocol request (SIP INVITE).
For example, first terminal resides on oneself AP (AP), make a phone call for second terminal by an AP, the one AP listens to call control message (Call Control in up direct-sending message, CC) call setup (call setup) message, extract wherein first termination number as calling terminal (callingparty number) and as second termination number (Called party number) of terminal called and preserve.
If 6 numerals before second termination number are that " 111236 " (represent the condition code of SIP audio call, can be provided with, the embodiment of the invention is not limited thereto), and the second actual termination number is the part of condition code back, whether the number of then judging this condition code back is the SIP herd number of certain AP (such as the 2nd AP), if then an AP no longer sends to core network to current call setup, but current call setup is converted to the SIP INVITE.The TO territory of this SIP INVITE comprises the SIP herd number of the 2nd AP, and the FROM territory comprises the SIP herd number of an AP.
Be understandable that, also can preestablish rule, directly second termination number is judged, if the SIP herd number of certain AP then is converted to the SIP INVITE with call setup.
S302: an AP sends SIP speech communication request (SIP INVITE) to the 2nd AP.
S303: the 2nd AP receives after the SIP INVITE, resides in the sign of all terminals under the 2nd AP at this moment to the ASG server lookup.
In this step, the sign of terminal can be international mobile equipment identification number (IMSI).
The S304:ASG server sends the IMSI that resides in all terminals under the 2nd AP to the 2nd AP.For example, send the IMSI of second terminal and the 3rd terminal to the 2nd AP.
Be understandable that the ASG server can also send TMSI (Temporary MobileSubscriber Identity, temporarily moved subscriber identifier) simultaneously and give AP.
S305: the 2nd AP receives after the IMSI of ASG server transmission, to the terminal transmission paging request (as: Paging type 1) of IMSI correspondence.
For example, the IMSI according to the second terminal IMSI and the 3rd terminal initiates paging to second terminal and the 3rd terminal respectively.
S306: the 2nd AP starts a timer T1.
S307: the 2nd AP receives the page-response message that any one terminal that resides in second indoor base station sends, and sets up radio bearer between the response terminal and is connected.
For example, the 2nd AP receives the call message of second terminal, and the 2nd AP and second terminal are finished radio bearer (RRC) establishment of connection, RAB Assignment or the like process, thereby the radio bearer of setting up between the 2nd AP and second terminal connects.
Be understandable that, if timer T1 is overtime, and at this moment the 2nd AP does not receive paging reply of any terminal, this AP sends SIP 480 message to an AP, if an AP receives SIP 480 message, discharge with first terminal between the radio bearer set up be connected and related resource.
S308: the 2nd AP stops the timing of timer T1.
S309: the 2nd AP sends (SIP 100Trying) message that pages reply to an AP.
S310: an AP receives after the SIP 100Trying, sends to call out to first terminal and confirms (callconfirmed) message.
S311: the ALERTING message of the terminal that the 2nd AP paging receiving is replied.
S312: the 2nd AP sends response message (SIP 180Ringing) to an AP, and starts timer T2.
S313: an AP receives SIP 180Ringing, sends ALERTING message (Alert) to first terminal.
S314: the 2nd AP is in the timer T2 stipulated time, if receive the offhook message (connect) of second terminal, the 2nd AP discharges other RRC that this paging carried out the terminal of replying and connects.
S315: the 2nd AP sends to an AP and confirms response message (SIP 200OK).
S316: an AP receives after the SIP 200OK, sends offhook message to first terminal.
This offhook message can be a connect message.
S317: first terminal responds offhook message, sends off-hook response message (Connect Ack) and gives an AP.
S318: an AP receives after this message, sends sip response message (SIP Ack) to the 2nd AP.
S319: the 2nd AP receives after the SIP Ack, to second terminal transmission Connect of off-hook Ack message.
S320: set up the UDP passage between an AP and the 2nd AP.
S321: an AP and the 2nd AP stand in the transmission of carrying out the SIP audio medium stream on the UDP passage, and the SIP audio medium stream that receives is forwarded to first terminal.
Concrete, first indoor base station receives the SIP audio medium stream that second indoor base station sends by the UDP passage, and with this SIP audio medium stream by with first terminal between radio bearer be connected and send to first terminal.
Be understandable that second indoor base station receives the SIP audio medium stream that first indoor base station sends by the UDP passage, and with this SIP audio medium stream by with second terminal between radio bearer be connected and send to second terminal.
In the process of passing through, as both sides that call out wherein during side's on-hook, the release call message (Release) that on-hook side sends arrives AP under it, and this AP sends to opposite end AP and finishes call message (SIPBYE), and release is connected with the RRC of on-hook side; Opposite end AP receives after the SIP BYE, sends Release message to the opposing party of conversation, and discharges with RRC by the opposing party and be connected.
After step S321, can also comprise the step among embodiment one or the embodiment two, thereby the wireless video communication is carried out in realization when carrying out the wireless speech communication.Concrete implementation process repeats no more herein.
By present embodiment, can realize the SIP speech communication under the AP covering, expanded the application of AP.
Concrete, the terminal under the AP can be called out the terminal of all members under another AP, and does not need to know the number of these terminals.
Be understandable that, the technical scheme that the embodiment of the invention provides, AP can have part MSC function, finishes functions such as calling out control, paging and radio bearer foundation; And AP has the function that call control message and sip message are changed mutually.
Referring to Fig. 4, the communication device schematic diagram of the soft switch service that provides for the embodiment of the invention four, this device comprises: first module 400 and second module 401.
Wherein, can be connected by the IMS core net between described device and the indoor base station.
For example, the transmission channel of soft switch service is UDP (User Datagram Protocol, a User Datagram Protoco (UDP)) passage.
Wherein, soft switch service is the SIP speech communication, perhaps the SIP video communication.
In the present embodiment, described device can be indoor base station, this indoor base station by and another base station between set up the soft switch service transmission channel, when carrying out the communication of the software reciprocal exchange of business between this soft switch service transmission channel and another indoor base station, thereby realized carrying out the soft switch service communication, expanded the application of indoor base station two indoor base station times.
Referring to Fig. 5, the communication device schematic diagram of the soft switch service that provides for the embodiment of the invention five in the present embodiment, is an initial session protocol SIP video communication based on the business of soft switch.With respect to embodiment four, in the present embodiment, first module 400 comprises:
For example, an AP is after the message of receiving the startup SIP video communication that the ASG server sends, and AP structure is asked the message of SIP video call (SIP INVITE), and the message of the request video call that will construct sends to the 2nd AP; The message acceptance side of this request video call (TO territory) comprises the SIP herd number of opposite end AP (the 2nd AP), startup side (FROM territory) comprises self SIP herd number of (AP), this SIP INVITE can also further carry Session Description Protocol (SDP) information simultaneously, and this SDP information can comprise public network IP address of the media formats that carries out video communication, type of coding, Media Stream port, AP or the like.
Concrete, an AP and the 2nd AP are known the IP address and the Media Stream port of opposite end according to Session Description Protocol (SDP) information, set up the UDP passage that is used for the SIP video communication.
The 3rd unit 502 is used for and carries out the transmission of SIP video media stream as the indoor base station (second indoor base station) of opposite end on the UDP passage, and shows sending to display device after the SIP video media stream decoding that receives.
In addition, the soft switch service communication device also comprises in the present embodiment:
The device that present embodiment provides, the integrated function of SIP client, the realization of SIP video communication flow process and the ASG server can be cooperated.When needing to carry out the SIP video communication between first terminal and second terminal, first module 500 sends the request message that starts soft switch service by integrated MSC function to opposite end AP, Signalling exchange by terminal, AP, ASG server, finishing the SIP video communication consults, set up the transmission channel of video communication between second unit 501 and the opposite end AP, the 3rd unit 502 carries out the SIP video communication with opposite end AP on transmission channel.Realize the SIP video communication of AP under covering with this, expanded the applied business of AP.
Referring to Fig. 6, the communication device schematic diagram of the soft switch service that provides for the embodiment of the invention six, in the present embodiment, soft switch service is initial session protocol SIP speech communication.With respect to embodiment four, in the present embodiment, first module 400 comprises:
The 4th unit 600 is used to receive the setup requests that second terminal of first terminal under indoor base station covers sends, and obtains first termination number and second termination number from setup requests; Judge when second termination number is the SIP herd number of described indoor base station, the setup requests that receives is converted to SIP speech communication request, send to indoor base station;
For example, the 4th unit 601 listens to call control message (Call Control in up direct-sending message, CC) call setup (call setup) message, extract wherein first termination number as calling terminal (calling party number) and as second termination number (Called partynumber) of terminal called and preserve.
If 6 numerals before second termination number are that " 111236 " (represent the condition code of SIP audio call, can be provided with, the embodiment of the invention is not limited thereto), and the second actual termination number is the part of condition code back, whether the number of then judging this condition code back is the SIP herd number of certain AP (such as the 2nd AP), if then an AP no longer sends to core network to current call setup, but current call setup is converted to the SIP INVITE.The TO territory of this SIP INVITE comprises the SIP herd number of the 2nd AP, and the FROM territory comprises the SIP herd number of an AP.
Be understandable that, also can preestablish rule, directly second termination number is judged, if the SIP herd number of certain AP then is converted to the SIP INVITE with call setup.
The 5th unit 601, after being used to receive the 2nd SIP response message of indoor base station transmission, the transmission channel of the described SIP voice communication between foundation and the indoor base station.
For example, the UDP transmission channel between Unit the 5th 601 foundation and the indoor base station.
Wherein, the 5th unit 601 comprises:
The 3rd subelement 604 after being used to receive the off-hook response message of described first terminal transmission, sends sip response message to second indoor base station, the transmission channel of the SIP video communication between the foundation and second indoor base station.
Accordingly, second module 401 comprises:
The 6th unit 605 is used for carrying out on described UDP passage with indoor base station the transmission of SIP audio medium stream, and the SIP audio medium stream that receives is forwarded to first terminal.
Concrete, receive the SIP audio medium stream that indoor base station sends by the UDP passage, and with this SIP audio medium stream by with first terminal between radio bearer be connected and send to first terminal.
The device that present embodiment provides, the integrated function of SIP client, and MSC function, the realization of SIP communication flow and the ASG server can be cooperated.When needing to carry out the SIP speech communication between first terminal and second terminal, the 4th unit 600 sends the request message that starts soft switch service by integrated MSC function to opposite end AP, Signalling exchange by terminal, AP, ASG server, finishing the SIP speech communication consults, set up the transmission channel of video communication between the 5th unit 601 and the opposite end AP, the 6th unit 605 carries out the SIP video communication with opposite end AP on transmission channel.Realize the SIP video communication of AP under covering with this, expanded the applied business of AP.
In addition, the embodiment of the invention also provides a kind of soft switch service communication system, comprises any or its combination of embodiment four to embodiment six described devices.
Above embodiment as can be seen, the embodiment of the invention provides has home gateway functionalities, housed devices such as landline telephone, mobile phone, computer, TV can be coupled together, form an indoor base station, receive the video communication request of any one terminal under its covering when an indoor base station, carry out the transmission of video media stream with another indoor base station, and the display device that sends under its covering after the video media stream decoding to reception shows, thereby realize wireless video communication, expanded the application of indoor base station based on indoor base station; In addition, any one terminal that resides under the indoor base station also can be dialed SIP phone, calling resides in all terminals under another indoor base station, when any one terminal response is called out, with set up radio bearer between the response terminal and be connected, thereby and carry out speech communication between the response terminal, thereby improve user experience based on indoor base station.
One of ordinary skill in the art will appreciate that all or part of step that realizes in the foregoing description method is to instruct relevant hardware to finish by program, described program can be stored in a kind of computer-readable recording medium.
The above-mentioned storage medium of mentioning can be magnetic disc, CD, read-only storage memory body (Read-OnlyMemory, ROM) or at random store memory body (Random Access Memory, RAM) etc.
More than the embodiment of the invention is described in detail, used specific case herein principle of the present invention and execution mode set forth, the explanation of above embodiment just is used for help understanding method of the present invention and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (13)
1. the means of communication of a soft switch service is characterized in that, described method comprises:
First indoor base station sends the request message that starts soft switch service to second indoor base station, sets up the transmission channel of described soft switch service;
Described first indoor base station and second indoor base station carry out the communication of described soft switch service on the transmission channel of described soft switch service;
When described soft switch service was initial session protocol SIP video communication, described first indoor base station sent the request message that starts soft switch service to second indoor base station, set up the transmission channel of described soft switch service, comprising:
After the message of the startup SIP video communication that described first indoor base station reception AP Service Gateway ASG server sends, send SIP video communication request message to second indoor base station, wherein, described SIP video communication request message comprises: the SIP herd number of first indoor base station and the SIP herd number of second indoor base station, after described first indoor base station receives a SIP response message of described second indoor base station transmission, the transmission channel of the described SIP video communication between foundation and described second indoor base station.
2. method according to claim 1 is characterized in that, described method also comprises:
When described first indoor base station receives its triggering message that covers the request SIP video communication that first terminal down sends, notify described ASG server in call record, to write down described first terminal permission video communication.
3. method according to claim 1 and 2 is characterized in that, the transmission channel of described soft switch service is a User Datagram Protoco (UDP) UDP passage,
First indoor base station and second indoor base station carry out the communication of described soft switch service on the transmission channel of described soft switch service, comprising:
Described first indoor base station and second indoor base station carry out the transmission of SIP video media stream on described UDP passage, and show sending to display device after the SIP video media stream decoding that receives.
4. the means of communication of a soft switch service is characterized in that,
First indoor base station sends the request message that starts soft switch service to second indoor base station, sets up the transmission channel of described soft switch service;
Described first indoor base station and second indoor base station carry out the communication of described soft switch service on the transmission channel of described soft switch service;
When described soft switch service was initial session protocol SIP speech communication, described first indoor base station sent the request message that starts soft switch service to second indoor base station, set up the transmission channel of described soft switch service, comprising:
Described first indoor base station receives the setup requests that second terminal of first terminal under second indoor base station covers under its covering sends, from described setup requests, obtain first termination number and second termination number, when described first indoor base station is judged the SIP herd number that described second termination number is second indoor base station, the setup requests that receives is converted to SIP speech communication request, send to second indoor base station, after described first indoor base station receives the 2nd SIP response message of described second indoor base station transmission, the transmission channel of the described SIP speech communication between foundation and described second indoor base station.
5. method according to claim 4 is characterized in that,
Described first indoor base station receives the 2nd SIP response message that described second indoor base station sends, and comprising:
First indoor base station receives the 2nd SIP response message that second indoor base station sends to first indoor base station, the terminal response of described the 2nd SIP response message under second indoor base station covers when the paging of second indoor base station and off-hook by described second indoor base station transmission;
The transmission channel of the described SIP speech communication between described foundation and described second indoor base station comprises:
After first indoor base station receives the 2nd SIP response message of second indoor base station transmission, send offhook message to first terminal;
Behind the off-hook response message that receives the transmission of first terminal, send sip response message to second indoor base station, the transmission channel of the described SIP video communication between foundation and described second indoor base station.
6. according to claim 4 or 5 described methods, it is characterized in that the transmission channel of described soft switch service is a User Datagram Protoco (UDP) UDP passage,
First indoor base station and second indoor base station carry out the communication of described soft switch service on the transmission channel of described soft switch service, comprising:
Described first indoor base station and second indoor base station carry out the transmission of SIP audio medium stream on described UDP passage, and the SIP audio medium stream that receives is forwarded to first terminal.
7. the communication device of a soft switch service is characterized in that, described device comprises:
First module is used for sending the request message that starts soft switch service to indoor base station, sets up the transmission channel of described soft switch service;
Second module is used for carrying out the communication of described soft switch service on the transmission channel of the soft switch service of described foundation;
When described business based on soft switch was initial session protocol SIP video communication, described first module comprised: first module and Unit second;
Described first module, after being used to receive the message of the startup SIP video communication that AP Service Gateway ASG server sends, send SIP video communication request message to indoor base station, wherein, described SIP video communication request message comprises: the SIP herd number of local terminal and the SIP herd number of described indoor base station;
Described Unit second, after being used to receive a SIP response message of described indoor base station transmission, the transmission channel of the described SIP video communication between foundation and the described indoor base station.
8. device according to claim 7 is characterized in that, described device also comprises:
Notification unit when being used to receive the triggering message of the request SIP video communication that first terminal sends, notifies described ASG server write down described first terminal permission video communication in call record.
9. according to claim 7 or 8 described devices, it is characterized in that the transmission channel of described soft switch service is a User Datagram Protoco (UDP) UDP passage, described second module comprises:
Unit the 3rd is used for carrying out on described UDP passage with described indoor base station the transmission of SIP video media stream, and shows sending to display device after the SIP video media stream decoding that receives.
10. the communication device of a soft switch service is characterized in that, described device comprises:
First module is used for sending the request message that starts soft switch service to indoor base station, sets up the transmission channel of described soft switch service;
Second module is used for carrying out the communication of described soft switch service on the transmission channel of the soft switch service of described foundation;
When described soft switch service was initial session protocol SIP speech communication, described first module comprised: Unit the 4th and Unit the 5th;
Described Unit the 4th is used to receive the setup requests that second terminal of first terminal under indoor base station covers sends, and obtains first termination number and second termination number from described setup requests; When judging the SIP herd number that described second termination number is described indoor base station, the setup requests that receives is converted to SIP speech communication request, sends to described indoor base station;
Described Unit the 5th, after being used to receive the 2nd SIP response message of described indoor base station transmission, the transmission channel of the described SIP speech communication between foundation and the described indoor base station.
11. device according to claim 10 is characterized in that, described Unit the 5th comprises:
First subelement is used to receive the 2nd SIP response message that described indoor base station sends, the terminal response of described the 2nd SIP response message under described indoor base station covers when the paging of described indoor base station and off-hook by described indoor base station transmission;
Second subelement after being used to receive the 2nd SIP response message of described indoor base station transmission, sends offhook message to described first terminal;
The 3rd subelement after being used to receive the off-hook response message of described first terminal transmission, sends sip response message to described indoor base station, the transmission channel of the described SIP speech communication between foundation and the described indoor base station.
12., it is characterized in that the transmission channel of described soft switch service is a User Datagram Protoco (UDP) UDP passage according to claim 10 or 11 described devices, described second module comprises:
Unit the 6th is used for carrying out on described UDP passage with described indoor base station the transmission of SIP audio medium stream, and the SIP audio medium stream that receives is forwarded to described first terminal.
13. the communication system of a soft switch service is characterized in that, comprises each described device of claim 7 to 12.
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| CN2009101423981A CN101583097B (en) | 2009-06-08 | 2009-06-08 | Soft switch service communication method, device and system |
| PCT/CN2010/073649 WO2010142229A1 (en) | 2009-06-08 | 2010-06-08 | Method, device and system for soft switch service communication |
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| CN2009101423981A CN101583097B (en) | 2009-06-08 | 2009-06-08 | Soft switch service communication method, device and system |
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| CN101860630B (en) * | 2010-06-22 | 2014-07-02 | 中兴通讯股份有限公司 | Transmission method and system of out-of-band dual tone multiple frequency (DTMF) signal |
| CN103139752B (en) * | 2011-12-01 | 2018-08-10 | 南京中兴新软件有限责任公司 | Transmission channel table amending method and device |
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